The Effectiveness of Realistic Mathematics Learning Model Based on Mandailing Culture in Teaching of Students' Mathematical Problem Solving Ability

摘要

The purpose of this research was to know the effectiveness of realistic mathematics learning model implementation based on Mandailing culture by teaching of students' mathematical problem solving ability in junior high school. The type of research was development research used 4D model, they were define, design, develop, and disseminate. This research discussed the develop phase, it was about the effectiveness of realistic mathematics learning model implementation based on Mandailing culture. The effectiveness of learning model was reviewed from the achievement of students' mastery learning in mathematical problem solving ability, the students' learning active activities and the students' response in learning. The research was conducted in public junior high school 1 Kotanopan grade VII where the design was pretest posttest control group design. The method of data collecting was conducted using test, observation and questionnaire. The obtained data was processed using quantitative descriptive analysis. The conducted research obtained some results, they were; (1) The mastery of students' mathematical problem solving ability in experimental class through the posttest achieved 90.63%, while in control class achieved 81.25% where the school classical mastery was 80%; (2) The active activities in experimental class through 10 activity aspects that was observed at all fulfilled the limit of effectiveness tolerance while in control class through 8 activity aspects that was observed fulfilled the limit of assigned effectiveness tolerance; (3) The students' positive response to learning in experimental class was about 98.91% and in control class was about 83.05%. If it was reviewed from the achievement criterion of learning mastery, learning active activities and students' response in experimental and control class was fulfill the criterion of the effectiveness and the effectiveness of experimental class was better than the control class. Therefore, generally states that the implementation of realistic mathematics learning model based on Mandailing culture was effective in teaching of students' mathematical problem solving ability.